December 2015
Intermediate to advanced
298 pages
5h 30m
English
Content preview from Scala Functional Programming PatternsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Scala idioms
When do we know a language? In English, when we say a penny for your thoughts, we are using an idiom. We can express ourselves more succinctly and natively using these. Beating around the bush is another one. If we pick up enough of these and hurl them around at times, this will makes us fluent.
It is almost the same with programming languages. You see a construct time and again and make use of notable features of a specific programming language. Here is a sample of idioms from a few prominent languages.
For example, here is an idiomatic Scala way to sum up two lists of numbers:
scala> val d1 = List(1, 2, 3, 4, 5) d1: List[Int] = List(1, 2, 3, 4, 5) scala> val d2 = List(11, 22, 33, 44, 55) d2: List[Int] = List(11, 22, 33, 44, 55)
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